- Contact information
- Mike Gilbertson
Agricultural Nonpoint Source Implementation Coordinator
Agricultural nonpoint source pollution
Nonpoint source pollution (or "runoff pollution") of Wisconsin’s waters comes from many sources, including agricultural operations and croplands. When it rains or snow melts, that water may be polluted through contact with manure, feed leachate, or milkhouse waste. When this polluted runoff enters our lakes, rivers or groundwater, it can cause significant pollution. Runoff sediment or fertilizers used on crop lands can also cause water pollution during rain or snow melt. Good farming practices can reduce this polluted runoff and protect water quality.